Suction cleaner
United States Patent 2333449
Inventors:
Stahl, Maurice D.
Publication Date:
11/02/1943
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Assignee:
HOOVER CO
Primary Class:
Other Classes:
15/326, 55/368, 417/312, 181/256, 181/230
International Classes:
A47L5/30; A47L9/14; A47L5/22